Sophie

Sophie

distrib > Mageia > 6 > armv5tl > media > core-updates > by-pkgid > 768f7d9f703884aa2562bf0a651086df > files > 650

qtbase5-doc-5.9.4-1.1.mga6.noarch.rpm

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE html>
<html lang="en">
<head>
  <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<!-- qsignaltransition.cpp -->
  <title>QSignalTransition Class | Qt Core 5.9</title>
  <link rel="stylesheet" type="text/css" href="style/offline-simple.css" />
  <script type="text/javascript">
    document.getElementsByTagName("link").item(0).setAttribute("href", "style/offline.css");
    // loading style sheet breaks anchors that were jumped to before
    // so force jumping to anchor again
    setTimeout(function() {
        var anchor = location.hash;
        // need to jump to different anchor first (e.g. none)
        location.hash = "#";
        setTimeout(function() {
            location.hash = anchor;
        }, 0);
    }, 0);
  </script>
</head>
<body>
<div class="header" id="qtdocheader">
  <div class="main">
    <div class="main-rounded">
      <div class="navigationbar">
        <table><tr>
<td >Qt 5.9</td><td ><a href="qtcore-index.html">Qt Core</a></td><td ><a href="qtcore-module.html">C++ Classes</a></td><td >QSignalTransition</td></tr></table><table class="buildversion"><tr>
<td id="buildversion" width="100%" align="right">Qt 5.9.4 Reference Documentation</td>
        </tr></table>
      </div>
    </div>
<div class="content">
<div class="line">
<div class="content mainContent">
<div class="sidebar">
<div class="toc">
<h3><a name="toc">Contents</a></h3>
<ul>
<li class="level1"><a href="#properties">Properties</a></li>
<li class="level1"><a href="#public-functions">Public Functions</a></li>
<li class="level1"><a href="#signals">Signals</a></li>
<li class="level1"><a href="#reimplemented-protected-functions">Reimplemented Protected Functions</a></li>
<li class="level1"><a href="#details">Detailed Description</a></li>
</ul>
</div>
<div class="sidebar-content" id="sidebar-content"></div></div>
<h1 class="title">QSignalTransition Class</h1>
<!-- $$$QSignalTransition-brief -->
<p>The <a href="qsignaltransition.html">QSignalTransition</a> class provides a transition based on a Qt signal. <a href="#details">More...</a></p>
<!-- @@@QSignalTransition -->
<div class="table"><table class="alignedsummary">
<tr><td class="memItemLeft rightAlign topAlign"> Header:</td><td class="memItemRight bottomAlign">   <span class="preprocessor">#include &lt;QSignalTransition&gt;</span>
</td></tr><tr><td class="memItemLeft rightAlign topAlign"> qmake:</td><td class="memItemRight bottomAlign"> QT += core</td></tr><tr><td class="memItemLeft rightAlign topAlign"> Since:</td><td class="memItemRight bottomAlign">  Qt 4.6</td></tr><tr><td class="memItemLeft rightAlign topAlign"> Inherits:</td><td class="memItemRight bottomAlign"> <a href="qabstracttransition.html">QAbstractTransition</a></td></tr></table></div><ul>
<li><a href="qsignaltransition-members.html">List of all members, including inherited members</a></li>
</ul>
<a name="properties"></a>
<h2 id="properties">Properties</h2>
<ul>
<li class="fn"><b><a href="qsignaltransition.html#senderObject-prop">senderObject</a></b> : QObject *</li>
<li class="fn"><b><a href="qsignaltransition.html#signal-prop">signal</a></b> : QByteArray</li>
</ul>
<ul>
<li class="fn">4 properties inherited from <a href="qabstracttransition.html#properties">QAbstractTransition</a></li>
<li class="fn">1 property inherited from <a href="qobject.html#properties">QObject</a></li>
</ul>
<a name="public-functions"></a>
<h2 id="public-functions">Public Functions</h2>
<div class="table"><table class="alignedsummary">
<tr><td class="memItemLeft rightAlign topAlign"> </td><td class="memItemRight bottomAlign"><b><a href="qsignaltransition.html#QSignalTransition">QSignalTransition</a></b>(QState *<i>sourceState</i> = Q_NULLPTR)</td></tr>
<tr><td class="memItemLeft rightAlign topAlign"> </td><td class="memItemRight bottomAlign"><b><a href="qsignaltransition.html#QSignalTransition-1">QSignalTransition</a></b>(const QObject *<i>sender</i>, const char *<i>signal</i>, QState *<i>sourceState</i> = Q_NULLPTR)</td></tr>
<tr><td class="memItemLeft rightAlign topAlign"> </td><td class="memItemRight bottomAlign"><b><a href="qsignaltransition.html#QSignalTransition-2">QSignalTransition</a></b>(const QObject *<i>sender</i>, PointerToMemberFunction <i>signal</i>, QState *<i>sourceState</i> = Q_NULLPTR)</td></tr>
<tr><td class="memItemLeft rightAlign topAlign"> </td><td class="memItemRight bottomAlign"><b><a href="qsignaltransition.html#dtor.QSignalTransition">~QSignalTransition</a></b>()</td></tr>
<tr><td class="memItemLeft rightAlign topAlign"> QObject *</td><td class="memItemRight bottomAlign"><b><a href="qsignaltransition.html#senderObject">senderObject</a></b>() const</td></tr>
<tr><td class="memItemLeft rightAlign topAlign"> void </td><td class="memItemRight bottomAlign"><b><a href="qsignaltransition.html#setSenderObject">setSenderObject</a></b>(const QObject *<i>sender</i>)</td></tr>
<tr><td class="memItemLeft rightAlign topAlign"> void </td><td class="memItemRight bottomAlign"><b><a href="qsignaltransition.html#setSignal">setSignal</a></b>(const QByteArray &amp;<i>signal</i>)</td></tr>
<tr><td class="memItemLeft rightAlign topAlign"> QByteArray </td><td class="memItemRight bottomAlign"><b><a href="qsignaltransition.html#signal">signal</a></b>() const</td></tr>
</table></div>
<ul>
<li class="fn">11 public functions inherited from <a href="qabstracttransition.html#public-functions">QAbstractTransition</a></li>
<li class="fn">32 public functions inherited from <a href="qobject.html#public-functions">QObject</a></li>
</ul>
<a name="signals"></a>
<h2 id="signals">Signals</h2>
<div class="table"><table class="alignedsummary">
<tr><td class="memItemLeft rightAlign topAlign"> void </td><td class="memItemRight bottomAlign"><b><a href="qsignaltransition.html#senderObjectChanged">senderObjectChanged</a></b>()</td></tr>
<tr><td class="memItemLeft rightAlign topAlign"> void </td><td class="memItemRight bottomAlign"><b><a href="qsignaltransition.html#signalChanged">signalChanged</a></b>()</td></tr>
</table></div>
<ul>
<li class="fn">3 signals inherited from <a href="qabstracttransition.html#signals">QAbstractTransition</a></li>
<li class="fn">2 signals inherited from <a href="qobject.html#signals">QObject</a></li>
</ul>
<a name="reimplemented-protected-functions"></a>
<h2 id="reimplemented-protected-functions">Reimplemented Protected Functions</h2>
<div class="table"><table class="alignedsummary">
<tr><td class="memItemLeft rightAlign topAlign"> virtual bool </td><td class="memItemRight bottomAlign"><b><a href="qsignaltransition.html#event">event</a></b>(QEvent *<i>e</i>)</td></tr>
<tr><td class="memItemLeft rightAlign topAlign"> virtual bool </td><td class="memItemRight bottomAlign"><b><a href="qsignaltransition.html#eventTest">eventTest</a></b>(QEvent *<i>event</i>)</td></tr>
<tr><td class="memItemLeft rightAlign topAlign"> virtual void </td><td class="memItemRight bottomAlign"><b><a href="qsignaltransition.html#onTransition">onTransition</a></b>(QEvent *<i>event</i>)</td></tr>
</table></div>
<ul>
<li class="fn">3 protected functions inherited from <a href="qabstracttransition.html#protected-functions">QAbstractTransition</a></li>
<li class="fn">9 protected functions inherited from <a href="qobject.html#protected-functions">QObject</a></li>
</ul>
<h3>Additional Inherited Members</h3>
<ul>
<li class="fn">1 public slot inherited from <a href="qobject.html#public-slots">QObject</a></li>
<li class="fn">11 static public members inherited from <a href="qobject.html#static-public-members">QObject</a></li>
<li class="fn">3 protected functions inherited from <a href="qabstracttransition.html#protected-functions">QAbstractTransition</a></li>
<li class="fn">9 protected functions inherited from <a href="qobject.html#protected-functions">QObject</a></li>
</ul>
<a name="details"></a>
<!-- $$$QSignalTransition-description -->
<div class="descr">
<h2 id="details">Detailed Description</h2>
<p>The <a href="qsignaltransition.html">QSignalTransition</a> class provides a transition based on a Qt signal.</p>
<p>Typically you would use the overload of <a href="qstate.html#addTransition">QState::addTransition</a>() that takes a sender and signal as arguments, rather than creating <a href="qsignaltransition.html">QSignalTransition</a> objects directly. <a href="qsignaltransition.html">QSignalTransition</a> is part of <a href="statemachine-api.html">The State Machine Framework</a>.</p>
<p>You can subclass <a href="qsignaltransition.html">QSignalTransition</a> and reimplement <a href="qsignaltransition.html#eventTest">eventTest</a>() to make a signal transition conditional; the event object passed to <a href="qsignaltransition.html#eventTest">eventTest</a>() will be a <a href="qstatemachine-signalevent.html">QStateMachine::SignalEvent</a> object. Example:</p>
<pre class="cpp">

  <span class="keyword">class</span> CheckedTransition : <span class="keyword">public</span> <span class="type"><a href="qsignaltransition.html#QSignalTransition">QSignalTransition</a></span>
  {
  <span class="keyword">public</span>:
      CheckedTransition(<span class="type"><a href="../qtwidgets/qcheckbox.html">QCheckBox</a></span> <span class="operator">*</span>check)
          : <span class="type"><a href="qsignaltransition.html#QSignalTransition">QSignalTransition</a></span>(check<span class="operator">,</span> SIGNAL(stateChanged(<span class="type">int</span>))) {}
  <span class="keyword">protected</span>:
      bool eventTest(<span class="type"><a href="qevent.html">QEvent</a></span> <span class="operator">*</span>e) {
          <span class="keyword">if</span> (<span class="operator">!</span><span class="type"><a href="qsignaltransition.html#QSignalTransition">QSignalTransition</a></span><span class="operator">::</span>eventTest(e))
              <span class="keyword">return</span> <span class="keyword">false</span>;
          <span class="type"><a href="qstatemachine.html">QStateMachine</a></span><span class="operator">::</span>SignalEvent <span class="operator">*</span>se <span class="operator">=</span> <span class="keyword">static_cast</span><span class="operator">&lt;</span><span class="type"><a href="qstatemachine.html">QStateMachine</a></span><span class="operator">::</span>SignalEvent<span class="operator">*</span><span class="operator">&gt;</span>(e);
          <span class="keyword">return</span> (se<span class="operator">-</span><span class="operator">&gt;</span>arguments()<span class="operator">.</span>at(<span class="number">0</span>)<span class="operator">.</span>toInt() <span class="operator">=</span><span class="operator">=</span> <span class="type"><a href="qt.html">Qt</a></span><span class="operator">::</span>Checked);
      }
  };

  <span class="operator">.</span><span class="operator">.</span><span class="operator">.</span>

  <span class="type"><a href="../qtwidgets/qcheckbox.html">QCheckBox</a></span> <span class="operator">*</span>check <span class="operator">=</span> <span class="keyword">new</span> <span class="type"><a href="../qtwidgets/qcheckbox.html">QCheckBox</a></span>();
  check<span class="operator">-</span><span class="operator">&gt;</span>setTristate(<span class="keyword">true</span>);

  <span class="type"><a href="qstate.html">QState</a></span> <span class="operator">*</span>s1 <span class="operator">=</span> <span class="keyword">new</span> <span class="type"><a href="qstate.html">QState</a></span>();
  <span class="type"><a href="qstate.html">QState</a></span> <span class="operator">*</span>s2 <span class="operator">=</span> <span class="keyword">new</span> <span class="type"><a href="qstate.html">QState</a></span>();
  CheckedTransition <span class="operator">*</span>t1 <span class="operator">=</span> <span class="keyword">new</span> CheckedTransition(check);
  t1<span class="operator">-</span><span class="operator">&gt;</span>setTargetState(s2);
  s1<span class="operator">-</span><span class="operator">&gt;</span>addTransition(t1);

</pre>
</div>
<!-- @@@QSignalTransition -->
<div class="prop">
<h2>Property Documentation</h2>
<!-- $$$senderObject-prop$$$senderObject$$$setSenderObjectconstQObject*$$$senderObjectChanged -->
<h3 class="fn" id="senderObject-prop"><a name="senderObject-prop"></a><span class="name">senderObject</span> : <span class="type"><a href="qobject.html#QObject">QObject</a></span> *</h3>
<p>This property holds the sender object that this signal transition is associated with</p>
<p><b>Access functions:</b></p>
<div class="table"><table class="alignedsummary">
<tr><td class="memItemLeft topAlign rightAlign"> QObject *</td><td class="memItemRight bottomAlign"><span class="name"><b><a href="qsignaltransition.html#senderObject">senderObject</a></b></span>() const</td></tr>
<tr><td class="memItemLeft topAlign rightAlign"> void </td><td class="memItemRight bottomAlign"><span class="name"><b><a href="qsignaltransition.html#setSenderObject">setSenderObject</a></b></span>(const QObject *<i>sender</i>)</td></tr>
</table></div>
<p><b>Notifier signal:</b></p>
<div class="table"><table class="alignedsummary">
<tr><td class="memItemLeft topAlign rightAlign"> void </td><td class="memItemRight bottomAlign"><span class="name"><b><a href="qsignaltransition.html#senderObjectChanged">senderObjectChanged</a></b></span>()</td><td class="memItemRight bottomAlign">[see note below]</td></tr>
</table></div>
<p><b>Note: </b>This is a private signal. It can be used in signal connections but cannot be emitted by the user.</p>
<!-- @@@senderObject -->
<!-- $$$signal-prop$$$signal$$$setSignalconstQByteArray&$$$signalChanged -->
<h3 class="fn" id="signal-prop"><a name="signal-prop"></a><span class="name">signal</span> : <span class="type"><a href="qbytearray.html">QByteArray</a></span></h3>
<p>This property holds the signal that this signal transition is associated with</p>
<p><b>Access functions:</b></p>
<div class="table"><table class="alignedsummary">
<tr><td class="memItemLeft topAlign rightAlign"> QByteArray </td><td class="memItemRight bottomAlign"><span class="name"><b><a href="qsignaltransition.html#signal">signal</a></b></span>() const</td></tr>
<tr><td class="memItemLeft topAlign rightAlign"> void </td><td class="memItemRight bottomAlign"><span class="name"><b><a href="qsignaltransition.html#setSignal">setSignal</a></b></span>(const QByteArray &amp;<i>signal</i>)</td></tr>
</table></div>
<p><b>Notifier signal:</b></p>
<div class="table"><table class="alignedsummary">
<tr><td class="memItemLeft topAlign rightAlign"> void </td><td class="memItemRight bottomAlign"><span class="name"><b><a href="qsignaltransition.html#signalChanged">signalChanged</a></b></span>()</td><td class="memItemRight bottomAlign">[see note below]</td></tr>
</table></div>
<p><b>Note: </b>This is a private signal. It can be used in signal connections but cannot be emitted by the user.</p>
<!-- @@@signal -->
</div>
<div class="func">
<h2>Member Function Documentation</h2>
<!-- $$$QSignalTransition[overload1]$$$QSignalTransitionQState* -->
<h3 class="fn" id="QSignalTransition"><a name="QSignalTransition"></a>QSignalTransition::<span class="name">QSignalTransition</span>(<span class="type"><a href="qstate.html">QState</a></span> *<i>sourceState</i> = Q_NULLPTR)</h3>
<p>Constructs a new signal transition with the given <i>sourceState</i>.</p>
<!-- @@@QSignalTransition -->
<!-- $$$QSignalTransition$$$QSignalTransitionconstQObject*constchar*QState* -->
<h3 class="fn" id="QSignalTransition-1"><a name="QSignalTransition-1"></a>QSignalTransition::<span class="name">QSignalTransition</span>(const <span class="type"><a href="qobject.html#QObject">QObject</a></span> *<i>sender</i>, const <span class="type">char</span> *<i>signal</i>, <span class="type"><a href="qstate.html">QState</a></span> *<i>sourceState</i> = Q_NULLPTR)</h3>
<p>Constructs a new signal transition associated with the given <i>signal</i> of the given <i>sender</i>, and with the given <i>sourceState</i>.</p>
<!-- @@@QSignalTransition -->
<!-- $$$QSignalTransition$$$QSignalTransitionconstQObject*PointerToMemberFunctionQState* -->
<h3 class="fn" id="QSignalTransition-2"><a name="QSignalTransition-2"></a>QSignalTransition::<span class="name">QSignalTransition</span>(const <span class="type"><a href="qobject.html#QObject">QObject</a></span> *<i>sender</i>, <span class="type">PointerToMemberFunction</span> <i>signal</i>, <span class="type"><a href="qstate.html">QState</a></span> *<i>sourceState</i> = Q_NULLPTR)</h3>
<p>This is an overloaded function.</p>
<p>Constructs a new signal transition associated with the given <i>signal</i> of the given <i>sender</i> object and with the given <i>sourceState</i>. This constructor is enabled if the compiler supports delegating constructors, as indicated by the presence of the macro Q_COMPILER_DELEGATING_CONSTRUCTORS.</p>
<p>This function was introduced in  Qt 5.7.</p>
<!-- @@@QSignalTransition -->
<!-- $$$~QSignalTransition[overload1]$$$~QSignalTransition -->
<h3 class="fn" id="dtor.QSignalTransition"><a name="dtor.QSignalTransition"></a>QSignalTransition::<span class="name">~QSignalTransition</span>()</h3>
<p>Destroys this signal transition.</p>
<!-- @@@~QSignalTransition -->
<!-- $$$event[overload1]$$$eventQEvent* -->
<h3 class="fn" id="event"><a name="event"></a><code>[virtual protected] </code><span class="type">bool</span> QSignalTransition::<span class="name">event</span>(<span class="type"><a href="qevent.html">QEvent</a></span> *<i>e</i>)</h3>
<p>Reimplemented from <a href="qobject.html#event">QObject::event</a>().</p>
<!-- @@@event -->
<!-- $$$eventTest[overload1]$$$eventTestQEvent* -->
<h3 class="fn" id="eventTest"><a name="eventTest"></a><code>[virtual protected] </code><span class="type">bool</span> QSignalTransition::<span class="name">eventTest</span>(<span class="type"><a href="qevent.html">QEvent</a></span> *<i>event</i>)</h3>
<p>Reimplemented from <a href="qabstracttransition.html#eventTest">QAbstractTransition::eventTest</a>().</p>
<p>The default implementation returns <code>true</code> if the <i>event</i> is a <a href="qstatemachine-signalevent.html">QStateMachine::SignalEvent</a> object and the event's sender and signal index match this transition, and returns <code>false</code> otherwise.</p>
<!-- @@@eventTest -->
<!-- $$$onTransition[overload1]$$$onTransitionQEvent* -->
<h3 class="fn" id="onTransition"><a name="onTransition"></a><code>[virtual protected] </code><span class="type">void</span> QSignalTransition::<span class="name">onTransition</span>(<span class="type"><a href="qevent.html">QEvent</a></span> *<i>event</i>)</h3>
<p>Reimplemented from <a href="qabstracttransition.html#onTransition">QAbstractTransition::onTransition</a>().</p>
<!-- @@@onTransition -->
<!-- $$$senderObject -->
<h3 class="fn" id="senderObject"><a name="senderObject"></a><span class="type"><a href="qobject.html#QObject">QObject</a></span> *QSignalTransition::<span class="name">senderObject</span>() const</h3>
<p>Returns the sender object associated with this signal transition.</p>
<p><b>Note:</b> Getter function for property <a href="qsignaltransition.html#senderObject-prop">senderObject</a>. </p><p><b>See also </b><a href="qsignaltransition.html#setSenderObject">setSenderObject</a>().</p>
<!-- @@@senderObject -->
<!-- $$$senderObjectChanged -->
<h3 class="fn" id="senderObjectChanged"><a name="senderObjectChanged"></a><code>[signal] </code><span class="type">void</span> QSignalTransition::<span class="name">senderObjectChanged</span>()</h3>
<p>This signal is emitted when the <a href="qsignaltransition.html#senderObject-prop">senderObject</a> property is changed.</p>
<p>This function was introduced in  Qt 5.4.</p>
<p><b>Note: </b>This is a private signal. It can be used in signal connections but cannot be emitted by the user.</p>
<p><b>Note:</b> Notifier signal for property <a href="qsignaltransition.html#senderObject-prop">senderObject</a>. </p><p><b>See also </b><a href="qsignaltransition.html#senderObject-prop">QSignalTransition::senderObject</a>.</p>
<!-- @@@senderObjectChanged -->
<!-- $$$setSenderObject -->
<h3 class="fn" id="setSenderObject"><a name="setSenderObject"></a><span class="type">void</span> QSignalTransition::<span class="name">setSenderObject</span>(const <span class="type"><a href="qobject.html#QObject">QObject</a></span> *<i>sender</i>)</h3>
<p>Sets the <i>sender</i> object associated with this signal transition.</p>
<p><b>Note:</b> Setter function for property <a href="qsignaltransition.html#senderObject-prop">senderObject</a>. </p><p><b>See also </b><a href="qsignaltransition.html#senderObject">senderObject</a>().</p>
<!-- @@@setSenderObject -->
<!-- $$$setSignal -->
<h3 class="fn" id="setSignal"><a name="setSignal"></a><span class="type">void</span> QSignalTransition::<span class="name">setSignal</span>(const <span class="type"><a href="qbytearray.html">QByteArray</a></span> &amp;<i>signal</i>)</h3>
<p>Sets the <i>signal</i> associated with this signal transition.</p>
<p><b>Note:</b> Setter function for property <a href="qsignaltransition.html#signal-prop">signal</a>. </p><p><b>See also </b><a href="qsignaltransition.html#signal">signal</a>().</p>
<!-- @@@setSignal -->
<!-- $$$signal -->
<h3 class="fn" id="signal"><a name="signal"></a><span class="type"><a href="qbytearray.html">QByteArray</a></span> QSignalTransition::<span class="name">signal</span>() const</h3>
<p>Returns the signal associated with this signal transition.</p>
<p><b>Note:</b> Getter function for property <a href="qsignaltransition.html#signal-prop">signal</a>. </p><p><b>See also </b><a href="qsignaltransition.html#setSignal">setSignal</a>().</p>
<!-- @@@signal -->
<!-- $$$signalChanged -->
<h3 class="fn" id="signalChanged"><a name="signalChanged"></a><code>[signal] </code><span class="type">void</span> QSignalTransition::<span class="name">signalChanged</span>()</h3>
<p>This signal is emitted when the signal property is changed.</p>
<p>This function was introduced in  Qt 5.4.</p>
<p><b>Note: </b>This is a private signal. It can be used in signal connections but cannot be emitted by the user.</p>
<p><b>Note:</b> Notifier signal for property <a href="qsignaltransition.html#signal-prop">signal</a>. </p><p><b>See also </b><a href="qsignaltransition.html#signal-prop">QSignalTransition::signal</a>.</p>
<!-- @@@signalChanged -->
</div>
        </div>
       </div>
   </div>
   </div>
</div>
<div class="footer">
   <p>
   <acronym title="Copyright">&copy;</acronym> 2017 The Qt Company Ltd.
   Documentation contributions included herein are the copyrights of
   their respective owners.<br>    The documentation provided herein is licensed under the terms of the    <a href="http://www.gnu.org/licenses/fdl.html">GNU Free Documentation    License version 1.3</a> as published by the Free Software Foundation.<br>    Qt and respective logos are trademarks of The Qt Company Ltd.     in Finland and/or other countries worldwide. All other trademarks are property
   of their respective owners. </p>
</div>
</body>
</html>

Perl :: Catalyst :: PostgreSQL :: RPM Valid HTML 4.01 Transitional